 In 1996 he became Director General of the Instituto Nacional de las Artes Escenicas y la Música (National Institute for Music and the Performing Arts), a post he held until 1999.Marco has twice been awarded the Spanish Premio Nacional de Música, in 1969 and again in 2002.He won the Prix d’Honneur of the VI Bienalle de Paris in 1969 and, in that year as well as in 1971, received prizes from the Gaudeamus Foundation in the Netherlands.